1
GATE CSE 2011
MCQ (Single Correct Answer)
+1
-0.3
A thread is usually defined as a ''light weight process'' because an operating system $$(OS)$$ maintains smaller data structures for a thread than for a process. In relation to this, which of the following is TRUE?
A
On per-thread basis, the $$OS$$ maintains only $$CPU$$ register state.
B
The $$OS$$ does not maintain a separate stack for each thread
C
On per-thread basis, the $$OS$$ does not maintain virtual memory state.
D
On per-thread basis, the $$OS$$ maintains only scheduling and accounting
2
GATE CSE 2011
MCQ (Single Correct Answer)
+1
-0.3
Let the time taken to switch between user and kernel modes of execution be $${t_1}$$ while the time taken to switch between two processes be $${t_2}$$.

Which of the following is TRUE?

A
$${t_1} > {t_2}$$
B
$${t_1} = {t_2}$$
C
$${t_1} < {t_2}$$
D
Nothing can be said about the relation between $${t_1}$$ and $${t_2}.$$
3
GATE CSE 2010
MCQ (Single Correct Answer)
+1
-0.3
Which of the following statements are true?
$${\rm I}.$$ Shortest remaining time first scheduling may cause starvation
$${\rm II}.$$ Preemptive scheduling may cause starvation
$${\rm III}.$$ Round robin is better than $$FCFS$$ in terms of response time
A
$${\rm I}$$ only
B
$${\rm I}$$ and $${\rm II}$$ only
C
$${\rm II}$$ and $${\rm III}$$ only
D
$${\rm I},$$ $${\rm II}$$ and $${\rm III}$$
4
GATE CSE 2009
MCQ (Single Correct Answer)
+1
-0.3
A CPU generally handles an interrupt by executing an interrupt service routine
A
As soon as an interrupt is raised
B
By checking the interrupt register at the end of fetch cycle.
C
By checking the interrupt register after finishing the execution of the current instruction.
D
By checking the interrupt register at fixed time intervals.
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